Effect of inlet flow maldistribution on the passage arrangement design of multi-stream plate-fin heat exchanger

被引:31
|
作者
Peng, Xiang [1 ]
Liu, Zhenyu [1 ]
Qiu, Chan [1 ]
Tan, Jianrong [1 ]
机构
[1] Zhejiang Univ, State Key Lab CAD&CG, Hangzhou 310027, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
Inlet flow maldistribution; Passage arrangement; Heat transfer rate; Multi-stream plate-fin heat exchanger; LAYER PATTERN OPTIMIZATION; THERMAL PERFORMANCE; GENETIC ALGORITHM; FLUID-FLOW; AIR-FLOW; CONFIGURATION; CFD; SIMULATION; MODEL;
D O I
10.1016/j.applthermaleng.2016.04.072
中图分类号
O414.1 [热力学];
学科分类号
摘要
Inlet flow maldistribution has deteriorative influence on the thermal performance of multi-stream plate fin heat exchanger, which affects the design of passage arrangement. In this paper, the optimization design of passage arrangement considering inlet flow maldistribution is investigated. A thermal model based on integral mean temperature difference is developed for evaluating the coupling effects of inlet flow distribution and passage arrangement on the total heat transfer rate of multi-stream plate-fin heat exchanger, the model is validated with +/- 6.71% root-mean-square errors of heat transfer rate under uniform flow with 20 groups of simulation data of Aspen Plate Fin Exchanger (Single)(R). Then three representative one-dimensional inlet mass flow distributions are adopted to characterize the inlet flow maldistribution. Passage arrangement under these flow maldistributions are optimized using hybrid particle swarm algorithm. By carrying out the optimization, the total heat transfer rate increased 2.50% and 4.52% under different inlet flow maldistributions of Flow A; and increased by 2.58-3.98% under different inlet flow maldistributions of Flow A of Flow B simultaneously. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:67 / 76
页数:10
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